McFarlane Aviation Products

Part Number: MCM83248/1-011

O-RING

Eligibility Notice

Please verify that this product is eligible for your aircraft before adding it to your cart.

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Approval	FAA-PMA
Condition	New
Manufacturer	McFarlane Aviation, Inc.
Unit of Measure	Each
Retail Price	$2.25
Your Price	$1.86
Stock Status	In Stock

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Product Details

The MCM83248 series o-rings are fuel proof FAA-PMA replacement o-rings. Only McFarlane has FAA approval to replace the old, less fuel resistant nitrile (MS series) and synthetic rubber (NAS series) o-rings with the latest fuel proof fluorocarbon o-rings! Flurocarbon rubber is commonly known as Viton. It is an advanced rubber that has extremely good fuel and heat resistance and is ideally suited for aircraft fuel system applications.

If you are looking for standard non FAA-PMA M83248 series o-rings, go to O-Rings and Gaskets.

McFarlane also has complete fuel selector, fuel shut off valve, and fuel strainer seal kits with all required seals and gaskets. Go to Fuel Selector/Shut-Off Valve Seal Kits or Fuel Strainer Parts to find the kit for your aircraft.

Supersedures

Eligibility Notice

Please verify that this product is eligible for your aircraft before adding it to your cart.

Click here to view product eligibility.

OEM Part Number	McFarlane Part Number	Comment
MS29513-011	MCM83248/1-011
MS29513-11	MCM83248/1-011
NAS1593-011	MCM83248/1-011

Related Categories

Eligible Aircraft

Make	Series	Model	Beginning S/N	Ending S/N	Quantity Per Aircraft	Location	Eligibility Chart
Cessna	150	150M	15078506	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	150	A150M	A1500685	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	150	F150M	F15001339	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	150	FA150M (when equipped w/FKA150-2311 & FKA150-2316)	FA1500312	FA1500336		fuel valve	1610
Cessna	150	FRA150M	FR1500312	FR1500336		fuel valve	1610
Cessna	152	152	15279406	15286033		fuel valve	1610
Cessna	152	A152	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	152	F152	F15201429	F15201980		fuel valve	1610
Cessna	152	FA152	FA1520337	FA1520425		fuel valve	1610
Cessna	172	172N	17267585	17274009		fuel valve	1610
Cessna	172	172P	17274010	17276654		fuel valve	1610
Cessna	172	172Q	17275869	17276211		fuel valve	1610
Cessna	172	172R	17280001	17299999	1	fuel valve	1610
Cessna	172	172RG	172RG0001	172RG1191		fuel valve	1610
Cessna	172	172S	172S8001	172S99999	1	fuel valve	1610
Cessna	172	F172N	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	172	F172P	F17202040	F17202254		fuel valve	1610
Cessna	177	177RG	177RG1052	177RG1366		fuel valve	1610
Cessna	177	F177RG	F177RG0161	F177RG0177		fuel valve	1610
Cessna	180	180K	18052771	18053203		fuel valve	1610
Cessna	182	182Q	18265176	18267715		fuel valve	1610
Cessna	182	182R	18267716	18268586		fuel valve	1610
Cessna	182	182S	18280001	18280944		fuel valve	1610
Cessna	182	182T	18280945	182999999		fuel valve	1610
Cessna	182	F182Q	F18200026	F18200169		fuel valve	1610
Cessna	182	FR182	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	182	R182	R18200001	R18202041		fuel valve	1610
Cessna	182	T182	18267716	18268541		fuel valve	1610
Cessna	182	T182T	T18208001	T182999999		fuel valve	1610
Cessna	182	TR182	R18200584	R18202041		fuel valve	1610
Cessna	185	A185F	18503154	18504448		fuel valve	1610
Cessna	188	A188B	18802746	18803973		fuel valve	1610
Cessna	188	A188B (w/ large hopper)	18803297T	18803973T		fuel valve	1610
Cessna	188	T188C	T18803325T	T18803974T		fuel valve	1610
Cessna	205	210-5 (205)	205-0001	205-0480		fuel valve	1610
Cessna	205	210-5A (205A)	205-0481	205-0577		fuel valve	1610
Cessna	206	206	206-0001	206-0275		fuel valve	1610
Cessna	206	P206	P206-0002	P206-0160		fuel valve	1610
Cessna	206	P206A	P206-0161	P206-0306		fuel valve	1610
Cessna	206	P206B	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	206	P206C	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	206	P206D	P206-0520	P206-0603		fuel valve	1610
Cessna	206	P206E	P20600604	P20600647		fuel valve	1610
Cessna	206	TP206A	P206-0191	P206-0306		fuel valve	1610
Cessna	206	TP206B	P206-0307	P206-0419		fuel valve	1610
Cessna	206	TP206C	P206-0420	P206-0519		fuel valve	1610
Cessna	206	TP206D	P206-0520	P206-0603		fuel valve	1610
Cessna	206	TP206E	P20600604	P20600647		fuel valve	1610
Cessna	206	TU206A	U206-0487	U206-0656		fuel valve	1610
Cessna	206	TU206B	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	206	TU206C	U206-0915	U206-1234		fuel valve	1610
Cessna	206	TU206D	U206-1235	U206-1444		fuel valve	1610
Cessna	206	TU206E	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	206	TU206F	U20601701	U20602199		fuel valve	1610
Cessna	206	TU206F	U20602200	U20603521		fuel valve	1610
Cessna	206	TU206G	U20603522	U20607020		fuel valve	1610
Cessna	206	U206	U206-0276	U206-0437		fuel valve	1610
Cessna	206	U206A	U206-0438	U206-0656		fuel valve	1610
Cessna	206	U206B	U206-0657	U206-0914		fuel valve	1610
Cessna	206	U206C	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	206	U206D	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	206	U206E	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	206	U206F	U20601701	U20602199		fuel valve	1610
Cessna	206	U206F	U20602200	U20603521		fuel valve	1610
Cessna	206	U206G	U20603522	U20607020		fuel valve	1610
Cessna	207	207	20700001	20700362		fuel valve	1610
Cessna	207	207A	20700363	20700788		fuel valve	1610
Cessna	207	T207	20700001	20700362		fuel valve	1610
Cessna	207	T207A	20700363	20700788		fuel valve	1610
Cessna	210	210B	21057841	21058085		fuel valve	1610
Cessna	210	210C	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	210	210D	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	210	210E	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	210	210F	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	210	210G	21058819	21058936		fuel valve	1610
Cessna	210	210H	0	ZZZZZZZZZZZZZZZ		fuel valve	1610
Cessna	210	210J	21059062	21059199		fuel valve	1610
Cessna	210	210K	21059200	21059502		fuel valve	1610
Cessna	210	210L	21059503	21061573		fuel valve	1610
Cessna	210	210M	21061574	21062954		fuel valve	1610
Cessna	210	210N	21062955	21064135		fuel valve	1610
Cessna	210	210N	21064136	21064897		fuel valve	1610
Cessna	210	210R	21064898	21065009		fuel valve	1610
Cessna	210	P210N	P21000001	P21000834		fuel valve	1610
Cessna	210	P210R	P21000835	P21000874		fuel valve	1610
Cessna	210	T210F	T210-0001	T210-0197		fuel valve	1610
Cessna	210	T210G	T210-0198	T210-0307		fuel valve	1610
Cessna	210	T210H	T210-0308	T210-0392		fuel valve	1610
Cessna	210	T210J	T210-0393	T210-0454		fuel valve	1610
Cessna	210	T210K	21059200	21059502		fuel valve	1610
Cessna	210	T210L	21059503	21061573		fuel valve	1610
Cessna	210	T210M	21061574	21062954		fuel valve	1610
Cessna	210	T210N	21062955	21064135		fuel valve	1610
Cessna	210	T210N	21064136	21064897		fuel valve	1610
Cessna	210	T210R	21064898	21065009		fuel valve	1610

Frequently Asked Questions

Question
Should I use a sealer or lubrication for my Viton gaskets? The Viton gasket and screw seals do not require any sealer and must not have any lubricants. Do not over tighten the attachment screws as over tightening can extrude the gasket out from under the transmitter and tear the gasket in the screw holes. This will cause a leak. Tighten the screws evenly until you see the gasket just start to extrude a little. Any lubrication will aggravate the tearing of the gasket.
How do I keep contaminants out of my fuel system? The fuel selector valve works in unscreened fuel. Contaminated fuel can cause selector valve seal damage. When fueling from possibly contaminated fuel sources McFarlane recommends the use of a fuel filter, such as Mr. Funnel or another filtering device, to reduce trash in the fuel system.
What pressure is used to test the fuel selector valves after repairs? We pressure test our repaired valves to a minimum of 5 psi using precision controlled air pressure and a calibrated low pressure indicator. This pressure is above the normal fuel pressure on the valve and below the limits of the springs in the valve. Each valve is submerged in Stoddard solvent while the air pressure is applied to the valve. The valves are then tested in each position to assure that there are no inter-port or external leaks. Leaks are detected by looking for air bubbles escaping from the valve.
How do I know when to replace or service my fuel selector valve? The most common indication of external fuel valve leaks is the smell of avgas in the cabin. Most valves are located under the cabin floor. Fuel stain on the valve and drain plug or drain valve or on the belly of the aircraft can also indicate external leakage. External leaks are generally around the actuation valve stem. Internal leaks are detected when the fuel is turned off and fuel continues to drip during fuel system maintenance. Inner port leakage will allow fuel from one tank to leak into another fuel tank. This type leak is difficult to detect. Fuel transfer from one tank to another with the fuel valve selected to one tank only will indicate inner-port leakage. An extended period of time is needed to detect fuel transfer from one tank to another. Generally if internal leakage is detected when servicing the fuel system, it is likely there is also inner-port leakage.